WARNING!!! In this post I DON'T want to offend anyone. That's just my opinion about this topic!
In the internet I've often met 10 or 11 years old children who say they are ace. I wondered why they say they are this. When I was as old as them I only knew there are straight, gay, intersex, male and female. Nothing more. I didn't know about more sexualities and genders. But I thought this was my fault.
When I first heard about the term "asexual" I thought: "Wow, that's me!" and labeled myself as this. At this time I was 14. I met a lot of people who said they are for example asexual omniromantic who was 12 years old. I thought this was kind of strange but I can't tell how.
About two months later when I did more research about asexuality I slowly came to the realisation that I'm not ace. I was, no I AM too young to label myself as ace. I thought I was ace because I actually haven't experienced sexual attraction yet. But that's not because I'm ace, that's because I am too young to experience sexual attraction. Sexual attraction is more an adult thing.
I shared my thoughts with my internet friends on the platform "Scratch" but they all said: "You are never too young to identify as ace." I just tried to explain this to them like I'm explaining it to you at the moment. But they all didn't changed their minds.
In my opinion sexual attraction is more an adult thing. We should draw the line between sexual and romantic attraction sharper. In my opinion it's okay to know your romantic orientation with 9+ but to label you with a sexual orientation you have to wait until you're 16+. That's why I'm presexual at the moment what means I haven't experienced enough sexual attraction to label it.
Same for allosexuals: it's okay to know your romantic orientation in a young age but for your sexuality you have to wait a few years.
So this was just my opinion about this. As an ex-asexual I know this feeling of being too young for this stuff. I feel sorry about grammar mistakes and typos because English isn't my first language.